The Collaborative International Dictionary
Calendulin
Calendulin \Ca*len"du*lin\, n. (Chem.) A gummy or mucilaginous tasteless substance obtained from the marigold or calendula, and analogous to bassorin.
Wiktionary
calendulin
n. (context organic compound English) A gummy or mucilaginous substance obtained from the marigold or calendula, and analogous to bassorin.